Starts today June 30, 2009, last date to ticket is July 13, 2009 - travel dates are June 30- Sept 15, 2009 , all travel must be completed by Sept 15, 2009

This is system wide International flights only - 1 mile in each direction for upgrade / good only on Y / B or M class fares. THIS is BASED on availabilty.

GOOD on NW/Delta International Destinations only - not good on Domestic US flights. NOT GOOD ON KLM / OR AIR FRANCE....

Verified with Northwest Worldperks and Delta SkyMiles....